Our little piece of dirt has several weed patches. I am trying to bring in native plants as I find them. Not always easy. But we do have milk weed.
And lots of fireflies in the summer.
Annuals are the hard part, and the most important to diverse insect life. Even tiny weeds can suppress native annual germination. If you have that problem I may be able to share what I've done to make it happen, but it takes considerable time to learn visually distinguish native germination from weed seedlings. FRmail me if you have questions.